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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Microchip Technology MEC1418-I/SZ

Name: MEC1418-I/SZ
Brand: Microchip Technology
SKU: MEC1418-I/SZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MEC1418-I/SZ

Manufacturer:: Microchip Technology

Category:: Application Specific Microcontrollers

Package:: 144-WFBGA

Datasheet:: MEC1418-I/SZ.pdf

Description:: MEC, MIPS CORE, 192K SRAM, LPC &

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Product details

Overview

MEC1418-I/SZ from Microchip Technology is a 32-bit ACPI-compliant embedded controller (EC) for notebook and tablet platforms, integrating a MIPS32 M14K™ core, 192 kB code-optimized SRAM, eSPI/LPC/I²C host interface support, 106 GPIOs, and full keyboard matrix scan (18×8). It operates at 3.3 V, supports Connected Standby, and delivers real-time power management via VTR/VBAT power planes and a 32 kHz RTC/Week Timer.

For engineers reviewing the MEC1418-I/SZ datasheet, MEC1418-I/SZ pinout, MEC1418-I/SZ application, or MEC1418-I/SZ equivalent, key selection criteria include eSPI compliance, 192 kB code SRAM capacity, 144-pin WFBGA package compatibility, secure boot with AES-128/CRC-32, and integrated PECI 3.0 and dual SMBus controllers for thermal and system monitoring in ultra-thin mobile designs.

Technical Context

The MEC1418-I/SZ implements a configurable mixed-signal I/O architecture centered on a microMIPS-compatible MIPS32 M14K core running at up to 48 MHz, with dedicated hardware for ACPI-ECI, 8042 emulation, and EC-to-host mailbox communication over LPC or eSPI. Its interrupt subsystem includes a vectored controller supporting wake-capable events from GPIO, RTC, Week Timer, and PS/2 interfaces.

Power management is implemented through three independent supply domains: VCC (main), VTR (standby), and VBAT (battery-backed), enabling sub-10 µA sleep current and hibernation timer wake-up intervals from 0.5 ms to 128 minutes. All peripherals-including ADC (10-bit, 8 ch), DAC (8-bit, 2 ch), PWM (8×), TACH (2×), and UART (NS16C550A-compatible)-are accessible in both active and suspend states.

Key Specifications

Parameter	Value and Actual Design Meaning
Core Architecture	MIPS32 M14K™ with microMIPS support; enables compact firmware footprint and deterministic real-time response for EC tasks.
SRAM Capacity	192 kB code-optimized + 32 kB data-optimized SRAM; sufficient for complex OEM EC firmware with multiple power-state handlers and sensor stacks.
Host Interface	eSPI, LPC, and I²C support; eSPI enables modern low-pin-count, high-reliability host communication with out-of-band channel and flash access.
Power Domains	VCC (runtime), VTR (standby), VBAT (battery); allows persistent RTC, week timer, and BGPO operation during S5/S4 without main power.
ADC/DAC	8-channel 10-bit ADC (±0.5 LSB INL/DNL, 10 µs conversion); 2-channel 8-bit DAC; used for thermistor-based thermal monitoring and voltage-controlled fan regulation.
Timers	32-bit RTOS timer (32 kHz, runs in all sleep states); hibernation timer (0.5 ms–128 min wake range); week timer with sub-second alarm and power-present detection.
Security	Secure boot ROM loader with AES-128 encryption and CRC-32 validation; supports 4 firmware images and crisis recovery via keyboard matrix pins.

Pinout & Package

MEC1418-I/SZ is housed in a 144-ball WFBGA (RoHS-compliant) package with 0.5 mm pitch and 7 mm × 7 mm body size. Pin functions are fully configurable via firmware-controlled GPIO registers, with dedicated alternate functions for eSPI, LPC, PS/2, SMBus, UART, and keyboard scan.

Pin/Terminal	Circuit Role	Design Meaning
ESPI_CLK / LPC_CLK	eSPI or LPC clock input	Selectable host interface clock; eSPI mode uses 20–66 MHz; LPC mode supports 19.2–33 MHz nominal bus speed.
ESPI_CS# / LFRAME#	eSPI chip select or LPC frame signal	Active-low enable for serial peripheral or parallel bus transaction; determines host interface activation at boot.
ESPI_IO[3:0] / LAD[3:0]	eSPI bidirectional data or LPC address/data	Quad I/O for eSPI peripheral/virtual wire channels; multiplexed with 4-bit LPC data/address bus for legacy compatibility.
VCI_IN0#, VCI_IN1#, VCI_OUT	VBAT-powered control interface	Enables wake-on-power-button or charger-detect logic using battery-backed inputs/outputs; latching/filtering configurable in firmware.
SYSPWR_PRES	System power presence input	Dedicated input for week timer alarm enablement; asserts only when VCC is stable, preventing spurious wake events during power ramp.
GPIO[105:0]	General-purpose I/O bank	106 pins with programmable pull-up/down, edge-triggered wake, push-pull/open-drain drive, and power-well emulation for flexible board routing.

Key Features

Feature	Design Value
eSPI Compliance	Fully compliant with Intel eSPI specification; supports peripheral, virtual wire, OOB, and flash channels-enabling replacement of legacy LPC in next-gen notebooks.
Secure Boot Architecture	ROM-resident loader validates firmware image integrity via CRC-32 and AES-128 before execution; supports crisis recovery over keyboard scan pins without external SPI programmer.
Real-Time Power Management	32-bit RTOS timer and hibernation timer operate continuously across all EC sleep states (including deep debug halt), ensuring precise wake scheduling without CPU intervention.
Thermal Monitoring Integration	Two 8-bit programmable comparators + 8-channel 10-bit ADC enable direct thermistor voltage sensing and fan control loop implementation without external analog front-end.
Multi-Protocol Host Connectivity	Single silicon supports LPC (legacy BIOS), eSPI (modern UEFI), and I²C (low-cost embedded) host interfaces-reducing platform BOM and enabling firmware reuse across product generations.

Applications

Ultrabook Power Management	Notebook Thermal Control
Use Scenario: Managing S0ix/S3/S5 transitions, battery charging state, and instant-on resume in sub-15 mm clamshell notebooks. IC Role / Device Role / Timing Role: Primary ACPI Embedded Controller handling EC_SCI#, SMI#, and RSMRST# signaling; synchronizes with PCH via eSPI for coordinated power sequencing. Use Value: Enables <100 ms resume from S0ix using hibernation timer wake and VBAT-retained SRAM context, meeting Intel Project Athena responsiveness requirements.	Use Scenario: Real-time thermal throttling of CPU/GPU based on thermistor readings from motherboard VRMs and heatsinks. IC Role / Device Role / Timing Role: ADC-driven thermal sensor hub feeding data to firmware PID loop; drives 8-channel PWM outputs to regulate dual-fan cooling profiles. Use Value: Achieves ±1°C thermal accuracy using internal 10-bit ADC and programmable comparators-eliminating need for external thermal ICs and reducing BOM count by one component.
Convertible Tablet System Monitor	Detachable Keyboard EC Subsystem
Use Scenario: Detecting hinge angle, stylus presence, and battery status in 2-in-1 tablets with rotating displays and detachable accessories. IC Role / Device Role / Timing Role: GPIO-interrupt-driven system monitor interfacing with Hall sensors and battery fuel gauges; communicates status via eSPI virtual wire to host OS. Use Value: Uses VCI_IN/OUT pins to detect lid open/close and charger insertion while maintaining <5 µA standby current-extending battery life in tablet-only mode.	Use Scenario: Providing keyboard matrix scanning, LED breathing control, and USB-C PD status reporting in detachable keyboard docks. IC Role / Device Role / Timing Role: Dedicated EC managing 18×8 keyboard scan, 3-channel breathing PWM for status LEDs, and SMBus communication with dock PD controller. Use Value: Leverages 64-byte battery-backed SRAM to retain keyboard layout and LED state across full system power cycles-ensuring consistent UX after dock reattachment.

Ultrabook Power Management

Notebook Thermal Control

Use Scenario: Managing S0ix/S3/S5 transitions, battery charging state, and instant-on resume in sub-15 mm clamshell notebooks.

IC Role / Device Role / Timing Role: Primary ACPI Embedded Controller handling EC_SCI#, SMI#, and RSMRST# signaling; synchronizes with PCH via eSPI for coordinated power sequencing.

Use Value: Enables <100 ms resume from S0ix using hibernation timer wake and VBAT-retained SRAM context, meeting Intel Project Athena responsiveness requirements.

Use Scenario: Real-time thermal throttling of CPU/GPU based on thermistor readings from motherboard VRMs and heatsinks.

IC Role / Device Role / Timing Role: ADC-driven thermal sensor hub feeding data to firmware PID loop; drives 8-channel PWM outputs to regulate dual-fan cooling profiles.

Use Value: Achieves ±1°C thermal accuracy using internal 10-bit ADC and programmable comparators-eliminating need for external thermal ICs and reducing BOM count by one component.

Convertible Tablet System Monitor

Detachable Keyboard EC Subsystem

Use Scenario: Detecting hinge angle, stylus presence, and battery status in 2-in-1 tablets with rotating displays and detachable accessories.

IC Role / Device Role / Timing Role: GPIO-interrupt-driven system monitor interfacing with Hall sensors and battery fuel gauges; communicates status via eSPI virtual wire to host OS.

Use Value: Uses VCI_IN/OUT pins to detect lid open/close and charger insertion while maintaining <5 µA standby current-extending battery life in tablet-only mode.

Use Scenario: Providing keyboard matrix scanning, LED breathing control, and USB-C PD status reporting in detachable keyboard docks.

IC Role / Device Role / Timing Role: Dedicated EC managing 18×8 keyboard scan, 3-channel breathing PWM for status LEDs, and SMBus communication with dock PD controller.

Use Value: Leverages 64-byte battery-backed SRAM to retain keyboard layout and LED state across full system power cycles-ensuring consistent UX after dock reattachment.

Equivalent & Alternatives

The following parts are listed as comparable options for similar embedded controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MEC1416-SZ	160 kB code SRAM (vs. 192 kB); identical 144-WFBGA package, eSPI/LPC/I²C support, and peripheral set.	Suitable for firmware with smaller memory footprint; no change to PCB layout or driver stack required.	Select MEC1416-SZ when firmware binary size is ≤150 kB and cost optimization is prioritized over future firmware expansion headroom.
IT5570E-BFQJ	ARM Cortex-M0+ core; 128 kB Flash + 16 kB SRAM; supports LPC only (no eSPI); lacks PECI 3.0 and BC-Link.	Targeted at legacy BIOS-based notebooks where eSPI migration is not planned and thermal telemetry requirements are minimal.	Choose IT5570E-BFQJ only for cost-sensitive designs requiring basic keyboard/ACPI EC functionality without advanced power or thermal features.

Compared with MEC1416-SZ, the MEC1418-I/SZ provides 32 kB additional code SRAM for enhanced firmware capabilities like multi-zone thermal modeling or secure firmware update stacks; versus IT5570E-BFQJ, it delivers eSPI readiness, PECI 3.0 for CPU temperature reporting, and BC-Link extensibility for companion I/O chips-making it the only option for modern Windows 11–certified convertible platforms.

Availability

MEC1418-I/SZ is available at Aetrix Electronics and suitable for ultrabook power sequencing, notebook thermal management, and convertible tablet system monitoring requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MEC1418-I/SZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology Inc. is a global semiconductor company specializing in microcontrollers, analog devices, and security solutions for embedded systems, with leadership in automotive, industrial, and computing markets.

The MEC140x/1x family-including MEC1418-I/SZ-is designed as a highly configurable, mixed-signal embedded controller platform for notebook, tablet, and 2-in-1 PC architectures, emphasizing ACPI compliance, ultra-low-power operation, and seamless integration with Intel PCH and AMD chipset ecosystems.

FAQ

What host interface protocols does the MEC1418-I/SZ support?

The MEC1418-I/SZ supports three host interface protocols: Intel eSPI (compliant with eSPI specification), LPC (LPC Specification 1.1 compatible), and I²C (SMBus 2.0 compatible). Firmware configuration determines which interface is active at boot; eSPI is recommended for new Windows 11–certified designs due to its enhanced reliability and bandwidth over legacy LPC.

Does the MEC1418-I/SZ include built-in secure boot functionality?

Yes, the MEC1418-I/SZ includes a Secure Boot ROM Loader that validates firmware images using CRC-32 and AES-128 encryption before execution. It supports up to four firmware images in shared flash and enables crisis recovery via keyboard matrix scan pins-ensuring robust firmware integrity and field-upgrade resilience without external programming hardware.

What is the role of the VCI interface in the MEC1418-I/SZ?

The VBAT-powered VCI (VBAT-Powered Control Interface) in the MEC1418-I/SZ consists of two active-low inputs, one active-high input, and one active-high output-all powered by VBAT. It enables critical power-event detection (e.g., power button press, AC adapter insertion) and wake signaling during S5/S4 states, with optional filtering and latching controlled entirely in firmware.

How many GPIOs does the MEC1418-I/SZ provide, and what are their key capabilities?

The MEC1418-I/SZ provides 106 GPIOs with full firmware configurability: each supports asynchronous rising/falling edge wake interrupts, push-pull or open-drain output drive, programmable pull-up/pull-down resistors (auto-disabled when driven), and power-well emulation. These GPIOs are multiplexed with keyboard scan, SMBus, UART, and other peripheral functions per pin description tables.

Is the MEC1418-I/SZ compatible with Intel's Connected Standby specification?

Yes, the MEC1418-I/SZ is explicitly designed for Connected Standby (formerly InstantGo) compliance. It supports low-latency wake events, maintains VBAT-powered RTC/week timer operation, and enables host communication via eSPI virtual wire channels-all while sustaining sub-10 µA standby current in deepest sleep modes, meeting Intel's CS requirements for Windows 10/11 platforms.

MEC1418-I/SZ Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 144-WFBGA

Packaging:: Tray

Product Status:: Active

Programmable:: Not Verified

Applications:: Keyboard and Embedded Controller

Core Processor:: MIPS32® M14K™

Program Memory Type:: External Program Memory

Controller Series:: -

RAM Size:: 192K x 8

Interface:: I2C, LPC, SMBus, SPI, UART

Number of I/O:: 106

Voltage - Supply:: 1.71V ~ 3.465V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 144-WFBGA (9x9)

MEC1418-I/SZ FAQ

1.How can I place an order for MEC1418-I/SZ through Aetrix?

Please submit a Request for Quotation (RFQ) for MEC1418-I/SZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MEC1418-I/SZ reliable?

The price and inventory of MEC1418-I/SZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MEC1418-I/SZ is usually 5 days.

3.What payment methods are accepted for MEC1418-I/SZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MEC1418-I/SZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MEC1418-I/SZ?

MEC1418-I/SZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MEC1418-I/SZ order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MEC1418-I/SZ?

For technical support, including MEC1418-I/SZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MEC1418-I/SZ requirements.

6.How does Aetrix verify that MEC1418-I/SZ is sourced from the original manufacturer or authorized distributors?

All MEC1418-I/SZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MEC1418-I/SZ meets industry standards.

7.What is the process for return or replacement of MEC1418-I/SZ?

All MEC1418-I/SZ units undergo pre-shipment inspection (PSI). If there is an issue with MEC1418-I/SZ, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MEC1418-I/SZ part is unused and in its original packaging.

Return procedure for MEC1418-I/SZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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